Gauging device



March 13, 1928. 1,662,066

V R. KRUMM GAUGING DEVICE Fil d Nov 22, 1926 INVENTOR. A Jieznxzold Jrzazzm,

Patented Mar. 3, 1928.

REINHOLD KRUMM, OF -IEHILADELIHIA, PENNSYLVANIAL.

GAUGIG DEVICE.

Application filed November 22, 1926. Serial No. 150,075.

This invention reiates to devices of a kind useful to photographers, artists, draftsrneri, etc., in gauging and border markmg photographs, pictures or charts.

In the main, my inventron is d1r-ectedtoward provision of a device of the sort re ferre'd to having capacity for universal adjustment to .deiine geometric arcas, e, g squares or oblongs, of d1fl'erent s1zes incidentally to trial by superimposrt1on of the device upon a photograph, picture orchart in deteimining the configuration and proportions best suited to the sub ect or any part thereof,for the purposes of subsequent border marking, cutting or biockmg out.-

A further object of my invention is to se-' cure the above desiderata in a gauging device that is extremely simple in construction, very easy to manipuiate, and conducive to manufacture at comparatively small cost.

Other objects and atteridant advantages will become readiiy apparent from the detailed description hereinafter of the typical embodiment of my invention shown in the accompanying drawings whereof Fig. I is a. plan view of the device;

Fig. II is a fragmentary view of the same on a larger scale than in the preceding 11- lustration; and

Fig. III, a view taken as indicated by the arrows IIIIII in Fig. II.

As herein delineated, the device comprises a pair of opposing overlapping members 56 which, in the present instance, are rightangled,one of them having both its extremities graduated for a purpose later on explained. These members 56 may be either of sheet metal, wood or celiuioid, and are joined by a diagonal connecting rod 7 that has its opposite ends frictionaliy engaged in upstanding apertured ears of swivel pieces 89 respectiveiy pivoted to bearing piates 10-11 on aXes 1213 directly in line with the vertices of the interior angles of said members, Beyond the parts just described, the rod 7 is further engaged, with capacity for endwise shifting, in clips 1415 which are pivotally coordinated with slides 16l7 movable along accurate segmental guides 1819 at the corners of the angie members 56, the curvature of said guides being concentric with respect to the swivel axes 1218. Angular adjustments of the rod 7 relative to the angie members 5-6 or vice versa are iizable by thumb screws 2021 which are carried by the slides i617 and bind against the segmental guides 1819. If desired or required, the segmen-,

tai guides 18-19 may be graduated in circular degrees to facilitate such 'angular adjustments.

In use, the device is superimposed upon the photograph, picture or chartas thecase may beso that the part or section to be used or preferred is visible in the opening between the angie members 56. Then by ioosening the thumb screws 2021, the angie members 5-6 may be swung about their respective swivel pivots 1218 and at the same time moved toward or awayfrom each other to reduce or enlarge the intervening v exposure opening and change its shape from obiong to square or vice versa. In this way it is obviousiy possible by triai,to determine the proportions and configuration best adapted to the particular subject at hand as well as to secure proper balance and symmetry of details. In proceeding as explained, care must be exercised to insure that the exposure opening forms a perfect paralielogram. It is for this reason that the graduations are provided on theangle member 5. After the desired setting is obtained, the thumb screws 2021 are tightened to pre vent relative dispiacement as between the angie members 56 incidentally to subsequent further use of the device for border marking or cutting.

It is of course to be understood that the members 56 may be given a configuration other than that herein shown and described,this consideration being governed entireiy in accordance with requirements of actual use and application.

Having thus described my invention, I claim:

1. A gauging device of the character described compr1sing opposing -overlapping members enclosing an interveiung exposure arca, fittings having swivel connection with said members and a oonnecting rod slidably engaged in the fittings whereby tne members may be moved toward or away from one another andrelativeiy swung in varying the configuration and size of the exposure area.

2. A gauging device of the character described comprising opposing overiapping angie members enciosing an intervening ex posure arca, fittings having swivel connection with the members at the angie vertices,

and aconnectngrod slidable in thefittings whereby said members maybe moved toward or away from one another and swung rela tively in determinng parallelogrm expo sure areas of different sizes and prpportions,

3. A gauging device of the character described comprising opposing angle members enclosing en intervening exposure area, fit-, tngs having swivel connect-ion with the members nt the ang1e vertices, a. connecting rod slidable in the fittings Whereby said members may be moved toward or away from one another and swung relatively in determining parallelogzram exposure areas of different sizes and proportions, and means to secure the parts in adjusted positions. 4. A gauging device of the -charcter described comprising 'opp0sing overlapping angle members encl0sing en ntervening exp0sure urea, fittings having swivel connection with the members at the angle vertices.

Whereby said members muy he moved toward .or.mvay from one another und swung rela REINHOLD KRMM. 

